Twyer-stock.



AA. G. MOKEE.

TWYER STOCK. APPLIOATION FILED DBO. 5, 1907.

Fatented Dec. 20, 1910.

l SHEETS-SHEET 1.

THE MORRIS PETERS CU., WASHINGYON. D. C.

A. G. MUKEB.

TWYBR STOCK.

APPLIOATION FILED nno; 5, 1901.

Patented 1366.20, 1910.

2 SHEETS-sume.

MMM.

ARTHUR G. MCKEE, OE' ULEVELAND, OHIO.

TWYER-STOCK.

mais?.

Application filed December 5, 1507.

Specification of Letters Patent.

To oli/ whom may concern Be it known that I, ARTHUR G. Molina, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful improvement in Twyer-Stocks, of which the following is a full, clear, and exact description.

rlhe object of the present invention is to provide an improved twyer stock.

More particularly my purpose is to provide a construction of twyer stock in which provision is made for ready replacement of the ball and socket interposed between the bustle pipe and the twyer stock, so that this replacement may be effected without taking down the stock or interrupting the operation of the furnace materially.

A further object has been to provide a construction in which a supporting collar for the stock shall be employed which shall support the stock and take the strains entirely in the solid metal and not have them transmitted through any bolts or joints as in certain prior structures and which shall also be capable of a swivel or rotary motion so that it can be rotated 900 and swung back en tirely out of the way while working in the twyer hole into the furnace.

Referring to the accompanying` drawings illustrating an embodiment of my invention: Figure l is an elevation partly in section showing my preferred construction, the stock being shown in dotted lines in the position which it occupies when swung away from the blow pipe. Fig. 2 is a detail showing connected parts about the ball and socket joint. Fig. 3 is a cross section of the supporting collar taken in the line 3 3 of Fig. 2.

As frequently occurs in such construction,

a short neck A projects from the bustle pipe A. At the lower part of this neck I provide a flange e2 for the support of a rotatable collar B from which the twyer stock C hangs. ln my construction this collar split and may be provided with short side flanges B through which the connecting bolts are passed, and each half of the collar is provided adjacent to the line of joinder with a portion of a cylindrically formed stud B2,-the two parts of the stud being mated together so as to afford a bearing for l l l l i l r l l l l l l l l l the hanger eyes B3 from which the supporting links B4 for the twyer stock swing. These links are each pivotally mounted so as to be capable of sidewise movement.

rElie twyer stock is provided at itsv upper end with ears or lugs C on each side, against the under side of which a wedge pin B, slidably mounted in a transverse slot in the lower end of the links, bears. A circumferential flange C2 surrounds the upper end of the stock, to which flange is bolted the socket member D of the ball and socket joint between the stock and the supporting neck. The ball member D of the joint is similarly bolted to the flange A2 of the supporting neck. By the arrangement just noted, perfect freedom of movement is, obviously, attained, so that the lower end of the stock may be suitably fitted to and held against the mouth of the twyer or blow pipe, and whenever desired, the stock may be rotated and swung to one side as for example at such times as when repairs are made about. the blowpipe.

lt will be seen by the above construction that whenever it becomes necessary to remove the ball and socket members it will be merely necessary to remove the bolts by which the flanges of these members are held to the adjacent parts, and then when opportunity arises during some interruption of the operation of the furnace to withdraw the wedge shaped keys somewhat from the slot of the swinging links in which they are mounted, thereby letting the stock drop a short distance, and permitting the immediate removal of the ball and socket members, which may be slipped out from between the neck and the stock and replaced at once by new members. The wedge shaped keys are then driven back into position to draw the stock up and the operation of the furnace resumed, after which the securing bolts may be replaced at leisure. This may be done without removing or dismounting the stock, or without the use of any machinery for the purpose of manipulating the same, and the time occupied in the interchange of parts is negligible. lt will further be noted that the strain created by the drawing in of the wedge keys to make effective joints will, in the construction which I have devised, be transmitted to the supporting neck entirely through the. soiid notai of the collar und not iliioiigh boils other connections is would be in@ one@ were tho joint` of the collar located DOO around the Collin.' avr-1y 'fi-oni ho Supporting studs.

Having thus (losoi'ibod my i;i\f'oni'ion, I claim:

l. In i fuimioo twyoi', di@ combination of n fixed supply neck, fi ooiai' rotatably suppoifted on tho nook, a iwlifoi' stock :and ioniovnbio bziii-:iiid-Sookc monibois between ih@ n'yoi' Took and Said coini'.

2. in n au'nzwo iwjyoe, (be combination of u ixed Suppiy nook, :i wllni iohitabiy snppoii'od on the nook, a iwyoi s'ovk wiib links Snppoil'ing it ii'oin sind oolzii', und i'oniofubi@ buil-and-s( yiin/ nic-inbois between the, twyoi' stock and, tho :como o'g n=,i f1nioi1t of the links 'to the colni'.

3. in coinbinn'ion, zi Supp; pipo und :i L'wyoi Stock, zi sopa zibo buil and Soi-,kot oonnootion between the saine, und means for suspending the stock from in@ supply pipo adopted to poi'niif ibo low-ring of the sfook n sufficient distance foi' the i'eiiim'zii and ifof pincement of tho bull and sockel mambo di. Li Combination u supply pipo and :x twyoi stock, n spiit supporting collar on die supply pipe having a portion of n bearing stud on oooh sido of dio split join, said son tions when united iiogohoi forming n beni* ing, and suspending means Yfoi' die Mook on Suid bearing horlling Suid Stud socionn to go/thor.

5. in combination, ai ling/oi' stock, l'onim'ublo b bois between the, suino ani nimm for :sofpoiding the fvq'mf Stock from ibo nnppiy pipoj ndi pioii to permit' the ioinofzi oi l'bo balli und Socket inoniboi's wiboni dih'cfonnoob inT the wyoi s'ofrk fioin ibo supply pipo.

pply pipo and :1,

su :1N und noi-koi' unam- Vi'ii'nosse@ A. C. En Pinson,

L, Boss ELLEN. 

